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GaryK [48]
3 years ago
15

How many valence electrons does the neutral Mg atom have?

Chemistry
2 answers:
Harrizon [31]3 years ago
8 0
Magnesium is element 12 and belongs to Group 2 of the Periodic Table. An element in Group 2 has two valence electrons. Also, the electron configuration of Mg is 1s² 2s²2p⁶ 3s² or [Ne]3s². Since the 3s² electrons are the outermost electrons, magnesium has two valence electrons.23 dic. 2014
Zanzabum3 years ago
7 0

Answer:

2 valence electrons

Explanation:

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Answer:

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Explanation:

Question is incomplete, so in picture 1, you have a sample of this question with the missing data.

Now, in general terms, the absorbance of a substance can be calculated using the beer's law which is the following:

A = εlc

Where:

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l: distance of the light in solution

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However, in this case, we have a plot line and a equation for this plot, so all we have to do is replace the given data into the equation and solve for x, which is the concentration.

the equation according to the plot is:

A = 15200c - 0.018

So solving for C for an absorbance of 0.25 is:

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4 0
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ozzi
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c = v x f

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Answer:

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Explanation:

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